IEC 60050-851:2008是IEV的一部分，定义了与电焊特别相关的术语。这第二版取消并取代了1991年出版的第一版。本版构成技术修订版。与上一版相比，这一版包括以下重大技术变化:由于技术和标准化的进步，必须在各部分中添加新的条目。此列表中的更改没有编号，因为此版本的编号与上一版本不同。变更情况如下: -第11节:增加了这一节，以考虑到总体发展情况。 -第12节:增加了关于发动机（电机）驱动设备以及电弧撞击和稳定装置的新术语。 -第13节:有关等离子焊接设备的新条款。-第14节:必须扩大有关消耗品的术语，并增加有关焊接设备的术语，如送丝机、冷却系统和气体控制台。 -第15节:除两个术语外，该节是全新的。

IEC 60050-851:2008, which is a part of the IEV, defines terms specifically relevant to electric welding. This second edition cancels and replaces the first edition published in 1991. This edition constitutes a technical revision. This edition included the following significant technical changes with respect to the previous edition: Due to technical and standardisation progress, new entries had to be made in the sections. The changes in this listing are not numbered as the numbering of this edition is different to the previous edition. The changes are as follows:
- Section 11: This section augmented to take into consideration the development in general.
- Section 12: New terms are added taking care of engine (motor) driven equipment and arc striking and stabilizing devices.
- Section 13: New terms dealing with plasma welding equipment.
- Section 14: The terms concerning consumables had to be enlarged and terms concerning welding equipment such as wire feeders, cooling systems and gas consoles are added.
- Section 15: This section is completely new with the exception of two terms.